3dRose LLC db_20175_2 Memory Book, 12 by 12-Inch, 90th Birthday Colorful Cake and Candles 11.5 x 11.5 Inch spiral bound hard covered 1 inch Twin Loop Wire Binding Spines 35 pages, 11.4 x 11.2 Inch - page thickness is 63lb cover Acid free bright white paper, non-coated paper Pages lay flat when book is opened